WO2017156695A1 - 一种发热体的制造方法及发热体的成型装置 - Google Patents

一种发热体的制造方法及发热体的成型装置 Download PDF

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Publication number
WO2017156695A1
WO2017156695A1 PCT/CN2016/076335 CN2016076335W WO2017156695A1 WO 2017156695 A1 WO2017156695 A1 WO 2017156695A1 CN 2016076335 W CN2016076335 W CN 2016076335W WO 2017156695 A1 WO2017156695 A1 WO 2017156695A1
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WO
WIPO (PCT)
Prior art keywords
preform
molding
generating body
mold
ceramic
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Application number
PCT/CN2016/076335
Other languages
English (en)
French (fr)
Inventor
刘秋明
向智勇
牛建华
韦志林
Original Assignee
惠州市吉瑞科技有限公司深圳分公司
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Application filed by 惠州市吉瑞科技有限公司深圳分公司 filed Critical 惠州市吉瑞科技有限公司深圳分公司
Priority to PCT/CN2016/076335 priority Critical patent/WO2017156695A1/zh
Priority to CN201680000089.9A priority patent/CN105813815B/zh
Publication of WO2017156695A1 publication Critical patent/WO2017156695A1/zh

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B23/00Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
    • AHUMAN NECESSITIES
    • A24TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24FSMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/70Manufacture
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B1/00Producing shaped prefabricated articles from the material
    • B28B1/50Producing shaped prefabricated articles from the material specially adapted for producing articles of expanded material, e.g. cellular concrete
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B1/00Producing shaped prefabricated articles from the material
    • B28B1/50Producing shaped prefabricated articles from the material specially adapted for producing articles of expanded material, e.g. cellular concrete
    • B28B1/503Moulds therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B28WORKING CEMENT, CLAY, OR STONE
    • B28BSHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B7/00Moulds; Cores; Mandrels
    • B28B7/16Moulds for making shaped articles with cavities or holes open to the surface, e.g. with blind holes
    • B28B7/18Moulds for making shaped articles with cavities or holes open to the surface, e.g. with blind holes the holes passing completely through the article
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B38/00Porous mortars, concrete, artificial stone or ceramic ware; Preparation thereof
    • AHUMAN NECESSITIES
    • A24TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24FSMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/10Devices using liquid inhalable precursors
    • AHUMAN NECESSITIES
    • A24TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
    • A24FSMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F40/00Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
    • A24F40/40Constructional details, e.g. connection of cartridges and battery parts
    • A24F40/46Shape or structure of electric heating means

Definitions

  • the present invention relates to the field of electronic smoking articles, and more particularly to a method of manufacturing a heat generating body and a molding apparatus for a heat generating body.
  • E-cigarettes as a popular smoking tool that can replace traditional paper cigarettes, are favored by many smokers for their portability and safety.
  • a common electronic cigarette mainly includes an outer casing, a power supply battery installed in the outer casing, an atomizer, and a suction nozzle.
  • the atomizer is heated by a heating wire to heat the smoke oil to realize atomization of the oil.
  • the structure shown is a heat generating structure placed in an electronic cigarette atomizer.
  • the heating wire 11 is directly wound on the glass fiber line 12 to form a heat generating structure, where the glass fiber line is 12 is an oil guiding body which has the characteristics of fire retarding, corrosion resistance and the like.
  • the glass fiber thread has the possibility of generating debris, and there is a hidden danger that the user is sucked into the mouth through the nozzle; when the heating temperature of the heating wire is too high, the glass fiber line is easily burnt, produces a burnt smell, and is attached after burning.
  • the heating efficiency of the heating wire is low, and the nebulizer is scrapped as a whole; meanwhile, in the assembly of the heating structure, it is often necessary to use electric conduction to connect the heating wire with the power supply circuit, which complicates the assembly and has insufficient .
  • the present invention provides a method for manufacturing a heat generating body and a forming device for a heat generating body in view of the problems existing in the prior art using a glass fiber strand.
  • the present invention provides a method of manufacturing a heat generating body, comprising the steps of:
  • the first preform is subjected to aerobic sintering, and the sintering temperature is set to 200 ° C ⁇ 600 ° C to obtain a second preform;
  • the ceramic powder body comprises a matrix material of 85% to 95 ⁇ 3 ⁇ 4 by weight of the ceramic powder body and 5 parts by weight of the ceramic powder body. % ⁇ 15 ⁇ 3 ⁇ 4 frit.
  • the base material includes at least one of corundum powder, quartz powder, maifan powder, silicon carbide, mullite powder, and cordierite powder.
  • the frit material includes silicon dioxide, aluminum oxide, and calcium peroxide.
  • At least one of magnesium oxide, sodium oxide, and potassium oxide At least one of magnesium oxide, sodium oxide, and potassium oxide.
  • the paraffin weight ratio is 40%, and the ceramic powder weight ratio is 60%.
  • the material of the heating wire is one of an iron-nickel alloy, a nickel-chromium alloy, titanium, or nickel.
  • the method further includes:
  • Step S17 Electrodes are soldered to the two electrical connection ends of the heating wire.
  • the present invention provides a molding apparatus for the above-described heat generating body, comprising: a mold base, a first mold forming assembly, a second mold forming assembly, and a mold top cover,
  • the first mold forming assembly and the second mold forming assembly are both disposed on the mold base, and the mold base has a base surface for forming an end surface of the first preform, the first
  • the mold forming assembly is a columnar body having a hollow structure and includes an inner side surface for forming an outer side wall of the first preform
  • the second mold forming assembly is a columnar body, and is disposed in the hollow structure in the first mold forming assembly, and has an outer side surface for forming an atomizing chamber;
  • the base surface, the inner side surface and the The outer side surface forms a molding cavity for molding the body of the first preform, the molding cavity includes a cavity bottom wall and a side wall;
  • the mold top cover is disposed at the first portion away from the mold base One end of the mold forming assembly, and having a cover pressing surface opposite to the base surface for forming the other end surface of the first preform;
  • the first partition and the second partition of the ceramic slurry are respectively disposed on the wall of the cavity of the molding cavity.
  • the first mold forming assembly is a cylinder having a hollow cylindrical structure
  • the second molding die assembly has a cylindrical shape
  • an inner side wall of the first mold forming assembly is formed The inner side surface, the outer side wall of the second mold forming assembly forms the outer side surface
  • the first isolation portion and the second isolation portion are both disposed on the bottom wall of the molding cavity, the first isolation portion includes a first line hole, and the second isolation portion includes a second line hole
  • the first wire hole and the second wire hole are respectively disposed at two sides of the second molding die assembly, and the hole walls of the first wire hole and the second wire hole are used for corresponding to the first A bow I foot and the second bow I foot form a close fit.
  • the first partition portion is provided on the base surface, and the second partition portion is disposed on the inner side surface;
  • the first isolation portion includes a third wire hole, and the third wire hole is disposed in the second mold forming assembly
  • the second partition portion includes a wire groove, and the wire groove is disposed on an end surface of the first mold forming assembly near the base surface.
  • Paraffin is used as a pore-forming agent and mixed with the ceramic powder in a weight ratio of 30 ⁇ 3 ⁇ 4 ⁇ 50 ⁇ 3 ⁇ 4 : 70 ⁇ 3 ⁇ 4 ⁇ 50 ⁇ 3 ⁇ 4.
  • the paraffin wax is mixed with the ceramic powder to form a ceramic slurry, and a molding device is used to form a first preform.
  • the resulting first preform is subjected to aerobic sintering to vaporize paraffin, moisture, and related organics to obtain a second preform.
  • the second preform is subjected to vacuum baking to form a heat generating body, that is, a heat generating body of a ceramic substrate having a porous structure.
  • the structure of the heating element formed by the manufacturing method solves the problem that the glass fiber fiber is used as the oil guiding body to generate debris, It affects the user's taste and even the health hazard, making the atomization effect and the smoke taste good.
  • FIG. 1 is a schematic view showing the structure of a heating element using a glass fiber thread as an oil guiding body
  • FIG. 2 is a schematic flow chart showing the steps of a method for manufacturing a heat generating body according to the present invention
  • FIG. 3 is a schematic view showing a specific structure of a first preform of the heat generating body of the present invention
  • FIG. 4 is a schematic structural view of a finished heat generating body corresponding to the first preform of FIG. 3;
  • FIG. 5 is a schematic view showing another specific structure of the first preform of the heat generating body of the present invention.
  • FIG. 6 is a schematic structural view of a finished heat generating body corresponding to the first preform of FIG. 5;
  • FIG. 7 is a schematic structural view of a molding apparatus for a heating element according to the present invention.
  • FIG. 8 is a schematic structural view of a first state of the molding apparatus of the present invention.
  • FIG. 9 is a schematic view showing the structure of a second state of the molding apparatus of the present invention.
  • FIG. 10 is a schematic structural view of a third state of the molding apparatus of the present invention.
  • Figure 11 is a schematic view showing the structure of a fourth state of the molding apparatus of the present invention.
  • FIG. 12 is a schematic view showing the first state of the molding apparatus of the present invention in another specific configuration of the first preform.
  • FIG. 2 a schematic diagram of the steps of a method for manufacturing a heat generating body of the present invention.
  • the heating wire is placed in the molding cavity of the molding device for molding the heating element, and the two electrical connection ends of the heating wire for electrically connecting with the power supply circuit are isolated to make the electrical connection end and the ceramic slurry Phase isolation, filling the molding cavity with ceramic slurry.
  • the two electrical connections of the heating wire are isolated to prevent the ceramic mud from adhering to the two electrical connections, thereby affecting the electrical contact performance of the heating wire.
  • the ceramic slurry to be poured into the molding device is hardened, and the hardened ceramic slurry is taken out to obtain a first preform of the heat generating body.
  • the paraffin wax and the ceramic powder are hardened, and the first preform formed by this crucible is the initial formation structure of the heating element.
  • the first preform is subjected to aerobic sintering, and the sintering temperature is set to 200° C. to 600° C. to obtain a second preform.
  • the formed first preform of the formed initial structure is moved into a high temperature sintering furnace to gasify and remove moisture, paraffin and other organic substances in the first preform, thereby obtaining a hardened second preform having a microporous structure Pieces.
  • the second preform is vacuum-fired to obtain a heating element, and the baking temperature is set to be 1100° C. to 1400° C.
  • the second preform is placed in a baking oven to be subjected to vacuum high-temperature baking and fired to obtain a heat-generating body product, that is, a ceramic heat-generating body having a microporous structure. It is baked under vacuum conditions to avoid oxidation of the heating wire at high temperatures, which in turn affects its electrical conductivity.
  • the present invention uses paraffin as a pore-forming agent to obtain a heating body of a ceramic matrix having a microporous structure by the above steps. Since the ceramic matrix is used, the effect of the presence of debris generated by the glass fiber line in the conventional heating element is solved, and the user feels and the body. Health risks. At the same time, the microporous structure of the ceramic matrix enables the heating body to be infiltrated by the smoky oil and has a certain adsorption and storage function for the smoky oil, thereby improving the heating efficiency and the fogging efficiency of the smoky oil.
  • the ceramic powder body comprises a matrix material of 85% to 95 ⁇ 3 ⁇ 4 of the weight of the ceramic powder and a frit of 5% to 15 ⁇ 3 ⁇ 4 of the weight of the ceramic powder.
  • the matrix material herein includes at least one of corundum powder, quartz powder, medical stone powder, silicon carbide, mullite powder, and cordierite powder.
  • the frit material herein includes at least one of silica, alumina, calcium peroxide, magnesium oxide, sodium oxide, and potassium oxide. According to the specific requirements of the user for the heating element to be formed, the corresponding base material and frit material can be carried out. The mix is adopted.
  • the matrix material comprises corundum powder and quartz powder
  • the frit comprises silica and calcium peroxide.
  • Corundum powder has strong cutting force, insulation and good chemical stability, and high temperature resistance.
  • Quartz powder has the characteristics of hardness, wear resistance and stable chemical properties.
  • the fineness of the ceramic powder is controlled within a certain range, such as a fineness of 120 mesh or more, to ensure powdery mixing.
  • the weight ratio of the paraffin wax is 30 ⁇ 3 ⁇ 4 ⁇ 50 ⁇ 3 ⁇ 4, and the weight ratio of the ceramic powder is 70 ⁇ 3 ⁇ 4 ⁇ 50 ⁇ 3 ⁇ 4, and the range of the micropore radius formed by the weight ratio is It is from 600nm to 8000nm.
  • the weight ratio of paraffin wax 40%, by weight of ceramic powder ratio of 60% at the weight ratio, pore radius formed is about 700 n m 900nm heating -
  • the ceramic substrate has good adsorption to the smoky oil, and the smoky oil is more uniformly dispersed in the respective micropores, so that the atomization of the smoky oil is uniform and the atomization efficiency is high.
  • the material of the heating wire is one of iron-nickel alloy, nickel-chromium alloy, titanium or nickel.
  • the heating wire is made of a nickel-chromium alloy.
  • the heating wire includes a spiral surrounding portion and two pins for electrically connecting to the power supply circuit, and the surrounding portion of the heating wire is embedded in the ceramic base body to form an integral structure with the ceramic base body.
  • the heating element and the spiral surrounding portion make the heating wire more uniform for the heating of the smoke oil.
  • the obtained heat generating body product is obtained.
  • the electric heating wire portion is embedded in the ceramic base body, and the electric heating wire has an extension from the ceramic base body.
  • the electronic wires are soldered at the two electrical connection ends of the heating wire, and the electronic wires have good electrical conductivity and ductility to meet the wiring requirements of more application scenarios.
  • FIG. 3 it is a schematic structural view of a first preform of the heat generating body of the present invention.
  • the first preform has a cylindrical shape, and the two electrical connection ends of the heating wire are disposed on the same side, and an atomization chamber structure is disposed through the cylindrical axis in the middle of the columnar body of the first preform.
  • the surrounding portion of the heating wire has a 1/5 portion exposed in the atomizing cavity structure formed by the first preform, so that the heating wire causes the ceramic of the heating body after forming the finished product of the heating element.
  • the temperature of the substrate close to the side of the atomization chamber structure is heated up faster, and the smoke oil in the microporous structure is more easily, and the user experience is good.
  • FIG. 4 it is a schematic structural view of a finished heat generating body corresponding to the first preform of FIG. 3. Formed here
  • the finished body of the heating element comprises a ceramic substrate having a plurality of microporous structures.
  • FIG. 5 another specific structural schematic view of the first preform of the heat generating body of the present invention is shown. Similar to the structure of FIG. 3, the first preform is cylindrical, and the two electrical connection ends of the heating wire are respectively disposed on both sides of the body, and the central portion of the columnar body of the first preform also runs along the cylinder axis. An atomization chamber structure is provided.
  • FIG. 6 is a schematic structural view of a finished heat generating body corresponding to the first preform of FIG. 5.
  • the first preformed heat generating body formed herein includes a ceramic substrate having a plurality of microporous structures.
  • the molding apparatus 3 includes a mold base 31, a first mold forming assembly 32, a second mold forming assembly 33, and a mold top cover 34.
  • the first mold forming assembly 32 and the second mold forming assembly 33 are both disposed on the mold base 31.
  • the mold base 31 has a base surface for forming an end surface of the first preform
  • the first mold forming assembly 32 has a columnar body of hollow structure and including an inner side surface 321 for forming an outer sidewall of the first preform.
  • the second mold forming assembly 33 is a columnar body and is disposed in the hollow structure in the first mold forming assembly 32, and has an outer side surface 331 for forming an atomizing chamber.
  • the base, inner side 321 and outer side 331 form a forming cavity for forming the body of the first preform, the forming cavity including the cavity bottom wall and side walls.
  • the first mold forming assembly further includes a left mold forming member 322 and a right mold forming member 323 which are structurally symmetrical with each other.
  • the mold top cover 34 is disposed at one end of the first mold forming assembly 32 remote from the mold base 31 and has a cover pressing surface opposite the base surface for forming the other end surface of the first preform.
  • a first partition portion and a second partition portion for respectively inserting and blocking the ceramic slurry are disposed on the cavity wall of the molding cavity respectively.
  • the first mold forming assembly is a cylinder having a hollow cylindrical structure
  • the second forming mold assembly is cylindrical
  • the inner side wall of the first mold forming assembly forms an inner side
  • the outer side wall of the second mold forming assembly Form the outer side.
  • the first isolation portion and the second isolation portion are both disposed on the bottom wall of the molding cavity, the first isolation portion includes a first wire hole, and the second isolation portion includes a second wire hole, the first wire hole and The second wire holes are respectively disposed at two sides of the second molding die assembly, and the hole walls of the first wire hole and the second wire hole are used to form a close fit with the corresponding first pin and the second pin. (Because the function and structure of the first line hole and the second line hole are the same, the label in the figure here Same as 312)
  • FIG. 9 a schematic structural view of a second state of the molding apparatus of the present invention is shown. Thereafter, the heating wire is coiled on the columnar structure of the second molding assembly 33, and the two electrical connection ends of the heating wire are respectively placed in the first wire hole and the second wire hole on the die base 31.
  • FIG. 10 it is a schematic structural view of a third state of the molding apparatus of the present invention. After the heating wire is fixed, the left molding member 322 and the right molding member 323 are merged, poured into the ceramic slurry, and compacted with the mold top cover 34.
  • FIG. 11 a schematic structural view of a fourth state of the molding apparatus of the present invention is shown. After the mold top cover 34 is compacted, the ceramic slurry is hardened to form a first preform structure of the heat generating body.
  • FIG. 12 there is shown a first state structural view of the molding apparatus of the present invention under another specific structure of the first preform.
  • the first partition portion is disposed on the base surface, and the second partition portion is disposed on the inner side surface.
  • the first partition portion includes a third wire hole 313, and the third wire hole 313 is provided at one side of the second mold forming assembly.
  • the second partition portion includes a wire groove 324, and the wire groove 324 is disposed on an end surface of the first mold forming assembly near the base surface to form the first preform structure of Fig. 5.
  • the wire groove 324 is disposed on the left molding member 322 and on the end surface adjacent to the mold top cover 34. The groove of the wire groove 324 extends from the side of the cavity wall to the outside of the left molding member 322.
  • paraffin wax is used as a pore-forming agent, and the ceramic powder is mixed at a weight ratio of 30 ⁇ 3 ⁇ 4 ⁇ 50 ⁇ 3 ⁇ 4 : 70 ⁇ 3 ⁇ 4 ⁇ 50%.
  • the paraffin wax is mixed with the ceramic powder to form a ceramic slurry, and a molding device is used to form a first preform.
  • the resulting first preform is subjected to aerobic sintering to vaporize paraffin, moisture, and related organics to obtain a second preform.
  • the second preform is subjected to vacuum baking to form a heat generating body, that is, a heat generating body of a ceramic substrate having a porous structure.
  • the structure of the heating element formed by the manufacturing method solves the conventional problem that the glass fiber fiber is used as the oil guiding body to generate debris, which affects the user's taste and even health, so that the atomization effect and the smoke taste are good.

Abstract

公开了一种发热体的制造方法及其发热体的成型装置,所述发热体的制造方法包括步骤:采用石蜡和陶瓷粉体进行配料,石蜡的重量配比为30%~50%,陶瓷粉体的重量配比为70%~50%;在石蜡处于熔融状态下,将石蜡与陶瓷粉体混匀搅拌,以生成陶瓷泥浆;将电热丝置于成型装置的成型腔中,对电热丝的两电连接端进行隔离处理,使电连接端与陶瓷泥浆相隔离,向成型腔中灌入陶瓷泥浆;待灌入成型装置中的陶瓷泥浆硬化,将硬化的陶瓷泥浆取出以得到发热体的第一预成型件;对第一预成型件进行有氧烧结以使石蜡气化,烧结温度设为200℃~600℃,以得到第二预成型件;对第二预成型件进行真空烘烤成型以得到发热体,烘烤温度设为1100℃~1400℃。

Description

发明名称:一种发热体的制造方法及发热体的成型装置 技术领域
[0001] 本发明涉及电子烟具领域, 尤其涉及一种发热体的制造方法及发热体的成型装 置。
背景技术
[0002] 电子烟作为现今一种较为流行的、 能够替代传统纸质烟的烟具, 以其便携及安 全等性能受到不少吸烟人士青睐。
[0003] 常见的电子烟, 主要包括外壳、 装设在外壳中供电电池、 雾化器以及吸嘴等组 件, 其中, 雾化器是通过电热丝发热以加热烟油从而实现烟油雾化的关键部件 , 其性能的好坏决定着电子烟的使用寿命。
[0004] 现有的, 参见图 1, 其展示的结构为置入电子烟雾化器中的一种发热结构, 电 热丝 11直接缠绕在玻璃纤维线 12上形成发热结构, 此处的玻璃纤维线 12为一种 具有防火阻燃、 耐腐蚀等特性的导油体。 然而, 玻璃纤维线有产生碎屑的可能 , 存在被用户通过吸嘴吸入口中的隐患; 在电热丝发热温度过高吋, 玻璃纤维 线易被烧焦, 产生焦味, 且烧焦后附着在发热丝上, 导致电热丝发热效率低下 , 进而使得雾化器整体报废; 同吋, 在进行发热结构的装配吋, 常需使用导电 将电热丝与供电电路连接起来, 使得装配复杂化, 存在不足。
技术问题
[0005] 本发明针对现有采用玻璃纤维线存在的问题, 提供了一种发热体的制造方法及 发热体的成型装置。
问题的解决方案
技术解决方案
[0006] 本发明就上述技术问题而提出的技术方案如下:
[0007] 一方面, 本发明提供了一种发热体的制造方法, 包括步骤:
[0008] Sl l、 采用石蜡和陶瓷粉体进行配料, 所述石蜡的重量配比为 30<¾~50%, 所述 陶瓷粉体的重量配比为 70<¾~50<¾; [0009] S12、 在所述石蜡处于熔融状态下, 将所述石蜡与所述陶瓷粉体混匀搅拌, 以 生成陶瓷泥浆;
[0010] S13、 将电热丝置于成型装置的用于成型发热体的成型腔中, 对所述电热丝的 用于与供电电路电连接的两电连接端进行隔离处理, 使所述电连接端与所述陶 瓷泥浆相隔离, 向所述成型腔中灌入所述陶瓷泥浆;
[0011] S14、 待灌入所述成型装置中的所述陶瓷泥浆硬化, 将硬化的所述陶瓷泥浆取 出以得到所述发热体的第一预成型件;
[0012] S15、 对所述第一预成型件进行有氧烧结, 烧结温度设为 200°C~600°C, 以得到 第二预成型件;
[0013] S16、 对所述第二预成型件进行真空烧制成型以得到发热体, 烘烤温度设为 110 0oC~1400oC=
[0014] 根据上述发热体的制造方法, 所述步骤 S11中, 所述陶瓷粉体包括占所述陶瓷 粉体重量的 85%~95<¾的基体材料和占所述陶瓷粉体重量的 5%~15<¾的熔块。
[0015] 根据上述发热体的制造方法, 所述基体材料包括刚玉粉、 石英粉、 麦饭石粉、 碳化硅分、 莫来石粉、 堇青石粉中的至少一种。
[0016] 根据上述发热体的制造方法, 所述熔块材料包括二氧化硅、 氧化铝、 过氧化钙
、 氧化镁、 氧化钠、 氧化钾中的至少一种。
[0017] 根据上述发热体的制造方法, 所述步骤 S11中, 所述石蜡重量配比为 40%, 所 述陶瓷粉体重量配比为 60%。
[0018] 根据上述发热体的制造方法, 所述电热丝的材质为铁镍合金、 镍铬合金、 钛或 是镍中的一种。
[0019] 根据上述发热体的制造方法, 进一步包括:
[0020] 步骤 S17、 在所述电热丝的两电连接端焊接有电子线。
[0021] 另一方面, 本发明还提供一种上述发热体的成型装置, 包括: 模具底座、 第一 模具成型组件、 第二模具成型组件以及模具顶盖,
[0022] 所述第一模具成型组件、 所述第二模具成型组件均设于所述模具底座上, 所述 模具底座具有用于形成第一预成型件一端面的基面, 所述第一模具成型组件为 具有中空结构的柱状体, 且包括用于形成第一预成型件外部侧壁的内侧面; 所 述第二模具成型组件呈柱状体, 且设于所述第一模具成型组件中的所述中空结 构中, 具有用于形成雾化腔的外侧面; 所述基面、 所述内侧面与所述外侧面形 成用于成型所述第一预成型件的本体的成型腔, 所述成型腔包括腔体底壁和侧 壁; 所述模具顶盖设于远离所述模具底座的所述第一模具成型组件的一端, 且 具有与所述基面相对、 用于形成所述第一预成型件的另一端面的盖压面;
[0023] 在所述成型腔的腔壁上设有分别供电热丝的第一弓 I脚和第二弓 I脚置入、 阻隔陶 瓷泥浆的第一隔离部和第二隔离部。
[0024] 根据上述的成型装置, 所述第一模具成型组件为具有中空圆柱结构的圆柱体, 所述第二成型模具组件呈圆柱状, 所述第一模具成型组件的内部的侧壁形成所 述内侧面, 所述第二模具成型组件的外部的侧壁形成所述外侧面;
[0025] 所述第一隔离部和第二隔离部均设在所述成型腔的所述底壁上, 所述第一隔离 部包括第一线孔, 所述第二隔离部包括第二线孔, 所述第一线孔和所述第二线 孔分别设置在所述第二成型模具组件的两侧, 所述第一线孔和所述第二线孔的 孔壁用于与对应的所述第一弓 I脚和所述第二弓 I脚形成紧密配合。
[0026] 根据上述的成型装置, 所述第一隔离部设在所述基面上, 所述第二隔离部设置 在所述内侧面上;
[0027] 所述第一隔离部包括第三线孔, 且所述第三线孔设于所述第二模具成型组件的
[0028] 所述第二隔离部包括线槽, 且所述线槽设于所述第一模具成型组件靠近所述基 面的端面上。
发明的有益效果
有益效果
[0029] 采用石蜡作为造孔剂, 并与陶瓷粉体按 30<¾~50<¾: 70<¾~50<¾的重量配比进行 混合。 在石蜡处于熔融状态下, 石蜡与陶瓷粉体混匀形成陶瓷泥浆, 再利用成 型装置以生成第一预成型件。 对生成的第一预成型件进行有氧烧结以气化石蜡 、 水分以及相关有机物, 以得到第二预成型件。 对第二预成型件进行真空烘烤 烧制, 以形成发热体成品, 即具有多孔结构的陶瓷基体的发热体。 通过该制造 方法形成的发热体结构, 解决传统采用玻璃纤维线作为导油体存在产生碎屑, 影响用户口感甚至健康的隐患, 使得雾化效果及烟雾口感好。
对附图的简要说明
附图说明
[0030] 为了更清楚地说明本发明实施例中的技术方案, 下面将对实施例描述中所需要 使用的附图作简单地介绍, 显而易见地, 下面描述中的附图仅仅是本发明的一 些实施例, 对于本领域普通技术人员来讲, 在不付出创造性劳动的前提下, 还 可以根据这些附图获得其他的附图。
[0031] 图 1为现有采用玻璃纤维线作为导油体的发热体结构示意图;
[0032] 图 2为本发明的发热体的制造方法的步骤流程示意图;
[0033] 图 3为本发明的发热体的第一预成型件的一种具体结构示意图;
[0034] 图 4为对应图 3中的第一预成型件的发热体成品结构示意图;
[0035] 图 5为本发明的发热体的第一预成型件的另一种具体结构示意图;
[0036] 图 6为对应图 5中的第一预成型件的发热体成品结构示意图;
[0037] 图 7为本发明的发热体的成型装置的结构示意图;
[0038] 图 8为本发明的成型装置的第一状态结构示意图;
[0039] 图 9为本发明的成型装置的第二状态结构示意图;
[0040] 图 10为本发明的成型装置的第三状态结构示意图;
[0041] 图 11为本发明的成型装置的第四状态结构示意图;
[0042] 图 12为本发明的成型装置在第一预成型件的另一种具体结构下的第一状态结 构示意图。
实施该发明的最佳实施例
本发明的最佳实施方式
[0043] 为使本发明的目的、 技术方案和优点更加清楚, 下面将结合附图对本发明实施 方式作进一步地详细描述。
[0044] 参见图 2, 本发明发热体的制造方法的步骤示意图。
[0045] Sl l、 对石蜡和陶瓷粉体进行配料, 石蜡的重量配比为 30%~50<¾, 陶瓷粉体的 重量配比为 70%~50<¾。 在此重量配比下, 石蜡与陶瓷粉体在混合均匀后, 通过 控制石蜡相对于陶瓷粉体的浓度分布, 以控制形成成品后的发热体的微孔结构 的大小。
[0046] S12、 在石蜡处于熔融状态下, 将石蜡与陶瓷粉体混匀搅拌, 以生成陶瓷泥浆
[0047] S13、 将电热丝置于成型装置的用于成型发热体的成型腔中, 对电热丝的用于 与供电电路电连接的两电连接端进行隔离处理, 使电连接端与陶瓷泥浆相隔离 , 向成型腔中灌入陶瓷泥浆。 对电热丝的两电连接端进行隔离处理, 以防止陶 瓷泥浆粘附在两电连接端上, 从而影响电热丝的电接触性能。
[0048] S14、 待灌入成型装置中的陶瓷泥浆硬化, 将硬化的陶瓷泥浆取出以得到发热 体的第一预成型件。 石蜡与陶瓷粉体硬化, 此吋生成的第一预成型件为发热体 的初始形成结构。
[0049] S15、 对第一预成型件进行有氧烧结, 烧结温度设为 200°C~600°C, 以得到第二 预成型件。 将成型的初始形成结构的第一预成型件移入高温烧结炉中, 以气化 去除第一预成型件中的水分、 石蜡以及其他有机物, 从而得到硬化的、 具有微 孔结构的第二预成型件。
[0050] S16、 对第二预成型件进行真空烧制成型以得到发热体, 烘烤温度设为 1100°C~ 1400°C。 将第二预成型件置于烘烤炉中进行真空高温烘烤烧制, 烧制得到发热体 成品, 即具有微孔结构的陶瓷发热体。 设于真空条件下烘烤烧制, 避免电热丝 在高温下氧化, 进而影响其导电性能。
[0051] 本发明以石蜡作为造孔剂, 通过上述步骤得到具有微孔结构的陶瓷基体的发热 体, 由于采用陶瓷基体, 解决传统发热体采用玻璃纤维线产生碎屑存在的影响 用户口感及身体健康的隐患。 与此同吋, 陶瓷基体的微孔结构使得发热体能够 被烟油所渗透且对烟油具有一定的吸附、 存储功能, 提升烟油的加热效率和雾 化效率。
[0052] 在上述步骤 S11中, 陶瓷粉体包括占陶瓷粉体重量的 85%~95<¾的基体材料和占 陶瓷粉体重量的 5%~15<¾的熔块。 具体地, 此处的基体材料包括刚玉粉、 石英粉 、 麦饭石粉、 碳化硅分、 莫来石粉、 堇青石粉中的至少一种。 此处的熔块材料 包括二氧化硅、 氧化铝、 过氧化钙、 氧化镁、 氧化钠、 氧化钾中的至少一种。 即可根据用户对所需形成的发热体的具体要求, 进行相应基体材料和熔块材料 的混合采用。
[0053] 在一个具体实施例中, 基体材料包括刚玉粉和石英粉, 熔块包括二氧化硅和过 氧化钙。 刚玉粉具有切削力较强、 绝缘且化学稳定性好, 耐高温。 石英粉具有 坚硬、 耐磨、 化学性能稳定等特性。 将基体材料与熔块进行混合形成陶瓷粉体
, 并保证陶瓷粉体的细度控制在一定范围内, 如细度为 120目以上, 保证粉状混 合。
[0054] 一般地, 石蜡的重量配比为 30<¾~50<¾, 陶瓷粉体的重量配比为 70<¾~50<¾, 在 重量配比下, 其形成的微孔半径的范围为 600nm~8000nm。
[0055] 在一个具体实施例中, 石蜡重量配比为 40%, 陶瓷粉体重量配比为 60%, 在该 重量配比下, 形成的微孔半径为约为 700nm~900nm的发热体成品, 此吋, 陶瓷 基体对烟油的吸附性好, 且将烟油更为均匀地分散于各个微孔, 使得烟油的雾 化均匀且雾化效率高。
[0056] 在进行高温处理过程中 (步骤 S15和步骤 S16) , 为保证电热丝的使用性能, 此 处的电热丝的材质为铁镍合金、 镍铬合金、 钛或是镍中的一种。 在一个优选实 施例中, 电热丝采用镍铬合金。
[0057] 此处, 电热丝包括呈螺旋状的环绕部和用于与供电电路电连接的两个引脚, 电 热丝的环绕部用于嵌设在陶瓷基体中, 以同陶瓷基体形成一体结构的发热体, 且呈螺旋状的环绕部使得电热丝对烟油的加热更加均匀。
[0058] 在步骤 S16完成后, 得到的发热体成品。 此吋电热丝部分嵌设在陶瓷基体中, 且电热丝具有延伸出陶瓷基体中。 在电热丝的两电连接端焊接电子线, 电子线 具有良好的导电性能和延展性, 以满足更多的应用场景的接线需要。
[0059] 参见图 3, 为本发明的发热体的第一预成型件的一种具体结构示意图。 第一预 成型件呈圆柱状, 电热丝的两电连接端设置在同侧, 且在第一预成型件的柱状 体的中部沿圆柱轴线贯穿设置有雾化腔结构。 在一个具体实施例中, 电热丝的 环绕部具有 1/5部分裸露在第一预成型件的形成的雾化腔结构中, 以使在形成发 热体成品后, 电热丝会使发热体的陶瓷基体靠近雾化腔结构一侧的温度升温快 , 更容易微孔结构中烟油, 用户体验好。
[0060] 参见图 4, 为对应图 3中的第一预成型件的发热体成品结构示意图。 此处形成的 发热体成品包括具有若干微孔结构的陶瓷基体。
[0061] 参见图 5, 为本发明的发热体的第一预成型件的另一种具体结构示意图。 与图 3 结构类似地, 此处第一预成型件呈圆柱状, 电热丝的两电连接端分别设置在本 体的两侧, 且在第一预成型件的柱状体的中部同样沿圆柱轴线贯穿设置有雾化 腔结构。
[0062] 参见图 6, 为对应图 5中的第一预成型件的发热体成品结构示意图。 此处的第一 预成型形成的发热体成品包括具有若干微孔结构的陶瓷基体。
[0063] 参见图 7, 为本发明的发热体的成型装置的结构示意图。 成型装置 3包括模具底 座 31、 第一模具成型组件 32、 第二模具成型组件 33以及模具顶盖 34。
[0064] 第一模具成型组件 32、 第二模具成型组件 33均设于模具底座 31上, 模具底座 31 具有用于形成第一预成型件一端面的基面, 第一模具成型组件 32为具有中空结 构的柱状体, 且包括用于形成第一预成型件外部侧壁的内侧面 321。 第二模具成 型组件 33呈柱状体, 且设于第一模具成型组件 32中的中空结构中, 具有用于形 成雾化腔的外侧面 331。 基面、 内侧面 321与外侧面 331形成用于成型第一预成型 件的本体的成型腔, 成型腔包括腔体底壁和侧壁。
[0065] 参见图 8, 为本发明的成型装置的第一状态结构示意图。 此处, 第一模具成型 组件进一步包括结构相互对称的左模成型件 322和右模成型件 323。 模具顶盖 34 设于远离模具底座 31的第一模具成型组件 32的一端, 且具有与基面相对、 用于 形成第一预成型件的另一端面的盖压面。
[0066] 在成型腔的腔壁上设有分别供电热丝的第一弓 I脚和第二弓 I脚置入、 阻隔陶瓷泥 浆的第一隔离部和第二隔离部。
[0067] 第一模具成型组件为具有中空圆柱结构的圆柱体, 第二成型模具组件呈圆柱状 , 第一模具成型组件的内部的侧壁形成内侧面, 第二模具成型组件的外部的侧 壁形成外侧面。
[0068] 结合图 3, 第一隔离部和第二隔离部均设在成型腔的底壁上, 第一隔离部包括 第一线孔, 第二隔离部包括第二线孔, 第一线孔和第二线孔分别设置在第二成 型模具组件的两侧, 第一线孔和第二线孔的孔壁用于与对应的第一引脚和第二 引脚形成紧密配合。 (因第一线孔和第二线孔功能、 结构相同, 此处图中标号 同为 312)
[0069] 参见图 9, 为本发明的成型装置的第二状态结构示意图。 此吋, 将电热丝盘绕 设置在第二成型组件 33的柱状体结构上, 且将电热丝的两电连接端分别置于模 具底座 31上的第一线孔和第二线孔中。
[0070] 参见图 10, 为本发明的成型装置的第三状态结构示意图。 在将电热丝固定好之 后, 将左模成型件 322和右模成型件 323并合, 灌入陶瓷泥浆, 并用模具顶盖 34 压实。
[0071] 参见图 11, 为本发明的成型装置的第四状态结构示意图。 在模具顶盖 34压实后 , 带陶瓷泥浆硬化成型, 形成发热体的第一预成型件结构。
[0072] 此外, 参见图 12, 为本发明的成型装置在第一预成型件的另一种具体结构下的 第一状态结构示意图。 结合图 5, 此处的第一隔离部设在基面上, 第二隔离部设 置在内侧面上。 第一隔离部包括第三线孔 313, 且第三线孔 313设于第二模具成 型组件的一侧。 第二隔离部包括线槽 324, 且线槽 324设于第一模具成型组件靠 近基面的端面上, 用以形成图 5中的第一预成型件结构。 图中, 线槽 324设置在 左模成型件 322上, 且位于靠近模具顶盖 34的端面上。 线槽 324的槽体由腔壁一 侧向左模成型件 322的外侧延伸设置。
[0073] 综上所述, 采用石蜡作为造孔剂, 并与陶瓷粉体按 30<¾~50<¾: 70<¾~50%的重 量配比进行混合。 在石蜡处于熔融状态下, 石蜡与陶瓷粉体混匀形成陶瓷泥浆 , 再利用成型装置以生成第一预成型件。 对生成的第一预成型件进行有氧烧结 以气化石蜡、 水分以及相关有机物, 以得到第二预成型件。 对第二预成型件进 行真空烘烤烧制, 以形成发热体成品, 即具有多孔结构的陶瓷基体的发热体。 通过该制造方法形成的发热体结构, 解决传统采用玻璃纤维线作为导油体存在 产生碎屑, 影响用户口感甚至健康的隐患, 使得雾化效果及烟雾口感好。
[0074] 上述本发明实施例序号仅仅为了描述, 不代表实施例的优劣。
[0075] 以上所述仅为本发明的较佳实施例, 并不用以限制本发明, 凡在本发明的精神 和原则之内, 所作的任何修改、 等同替换、 改进等, 均应包含在本发明的保护 范围之内。

Claims

权利要求书
[权利要求 1] 一种发热体的制造方法, 其特征在于, 包括步骤:
511、 采用石蜡和陶瓷粉体进行配料, 所述石蜡的重量配比为 30%~50 % , 所述陶瓷粉体的重量配比为 70<¾~50<¾;
512、 在所述石蜡处于熔融状态下, 将所述石蜡与所述陶瓷粉体混匀 搅拌, 以生成陶瓷泥浆;
513、 将电热丝置于成型装置的用于成型发热体的成型腔中, 对所述 电热丝的用于与供电电路电连接的两电连接端进行隔离处理, 使所述 电连接端与所述陶瓷泥浆相隔离, 向所述成型腔中灌入所述陶瓷泥浆
514、 待灌入所述成型装置中的所述陶瓷泥浆硬化, 将硬化的所述陶 瓷泥浆取出以得到所述发热体的第一预成型件;
515、 对所述第一预成型件进行有氧烧结, 烧结温度设为 200°C~600°C
, 以得到第二预成型件;
516、 对所述第二预成型件进行真空烧制成型以得到发热体, 烘烤温 度设为 1100°C~1400°C。
根据权利要求 1所述发热体的制造方法, 其特征在于, 所述步骤 S11中 , 所述陶瓷粉体包括占所述陶瓷粉体重量的 85%~95<¾的基体材料和 占所述陶瓷粉体重量的 5%~15<¾的熔块。
根据权利要求 2所述发热体的制造方法, 其特征在于, 所述基体材料 包括刚玉粉、 石英粉、 麦饭石粉、 碳化硅分、 莫来石粉、 堇青石粉中 的至少一种。
根据权利要求 2所述发热体的制造方法, 其特征在于, 所述熔块材料 包括二氧化硅、 氧化铝、 过氧化钙、 氧化镁、 氧化钠、 氧化钾中的至 少一种。
根据权利要求 1所述发热体的制造方法, 其特征在于, 所述步骤 S11中 , 所述石蜡重量配比为 40%, 所述陶瓷粉体重量配比为 60%。
根据权利要求 1所述的发热体的制造方法, 其特征在于, 所述电热丝 的材质为铁镍合金、 镍铬合金、 钛或是镍中的一种。
[权利要求 7] 根据权利要求 1所述发热体的制造方法, 其特征在于, 进一步包括: 步骤 S17、 在所述电热丝的两电连接端焊接有电子线。
[权利要求 8] —种如权利要求 1所述的成型装置, 其特征在于, 包括: 模具底座、 第一模具成型组件、 第二模具成型组件以及模具顶盖,
所述第一模具成型组件、 所述第二模具成型组件均设于所述模具底座 上, 所述模具底座具有用于形成第一预成型件一端面的基面, 所述第 一模具成型组件为具有中空结构的柱状体, 且包括用于形成第一预成 型件外部侧壁的内侧面; 所述第二模具成型组件呈柱状体, 且设于所 述第一模具成型组件中的所述中空结构中, 具有用于形成雾化腔的外 侧面; 所述基面、 所述内侧面与所述外侧面形成用于成型所述第一预 成型件的本体的成型腔, 所述成型腔包括腔体底壁和侧壁; 所述模具 顶盖设于远离所述模具底座的所述第一模具成型组件的一端, 且具有 与所述基面相对、 用于形成所述第一预成型件的另一端面的盖压面; 在所述成型腔的腔壁上设有分别供电热丝的第一弓 I脚和第二弓 I脚置入 、 阻隔陶瓷泥浆的第一隔离部和第二隔离部。
[权利要求 9] 根据权利要求 8所述的成型装置, 其特征在于, 所述第一模具成型组 件为具有中空圆柱结构的圆柱体, 所述第二成型模具组件呈圆柱状, 所述第一模具成型组件的内部的侧壁形成所述内侧面, 所述第二模具 成型组件的外部的侧壁形成所述外侧面;
所述第一隔离部和第二隔离部均设在所述成型腔的所述底壁上, 所述 第一隔离部包括第一线孔, 所述第二隔离部包括第二线孔, 所述第一 线孔和所述第二线孔分别设置在所述第二成型模具组件的两侧, 所述 第一线孔和所述第二线孔的孔壁用于与对应的所述第一引脚和所述第 二引脚形成紧密配合。
[权利要求 10] 根据权利要求 8所述的成型装置, 其特征在于, 所述第一隔离部设在 所述基面上, 所述第二隔离部设置在所述内侧面上;
所述第一隔离部包括第三线孔, 且所述第三线孔设于所述第二模具成 型组件的一侧;
所述第二隔离部包括线槽, 且所述线槽设于所述第一模具成型组件靠 近所述基面的端面上。
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